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Clinical outcomes in patients with native valve infective endocarditis and diabetes mellitus

World Journal of Cardiology 2021年第1期13卷 11-20页

作者： Temidayo Abe Harry Onoriode Eyituoyo Gabrielle De Allie Titilope Olanipekun valery sammah effoe Kikelomo Olaosebikan Paul Mather Department of Internal Medicine Morehouse School of MedicineAtlantaGA 30310United States Department of Internal Medicine Mercer University School of MedicineMaconGA 31207United States Department of Cardiovascular Disease Morehouse School of MedicineAtlantaGA 30310United States Department of Medicine University of Debrecen Medical and Health Science CenterDebrecen 4032Hungary Department of Cardiovascular Disease University of PennsylvaniaPennsylvaniaPA 19104United States

BACKGROUND There is a lack of data on the clinical outcomes in patients with native valve infective endocarditis(NVIE)and diabetes mellitus(DM).AIM To investigate(1)trends in the prevalence of DM among patients with NVIE;and(2)the impact of DM on NVIE *** We identified 76385 with NVIE from the 2004 to 2014 National Inpatient Sample,of which 22284(28%)had *** assessed trends in DM from 2004 to 2014 using the Cochrane Armitage *** compared baseline comorbidities,microorganisms,and in-patients procedures between those with vs without *** match analysis and multivariate logistic regression were used to investigate study outcomes in in-hospital mortality,stroke,acute heart failure,cardiogenic shock,septic shock,and atrioventricular *** Crude rates of DM increased from in 22%in 2004 to 30%in *** were significant differences in demographics,comorbidities and NVIE risk factors between the two *** aureus was the most common organism identified with higher rates in patients with DM(33.1%vs 35.6%;P<0.0001).After propensity matching,in-hospital mortality(11.1%vs 11.9%;P<0.0001),stroke(2.3%vs 3.0%;P<0.0001),acute heart failure(4.6%vs 6.5%;P=0.001),cardiogenic shock(1.5%vs 1.9%;P<0.0001),septic shock(7.2%vs 9.6%;P<0.0001),and atrioventricular block(1.5%vs 2.4%;P<0.0001),were significantly higher in patients with *** predictors of mortality in NVIE patients with DM include hemodialysis,congestive heart failure,atrial fibrillation,staphylococcus aureus,and older *** There is an increasing prevalence of DM in NVIE and it is associated with poorer *** studies are crucial to identify the clinical,and sociodemographic contributors to this trend and develop strategies to mitigate its attendant risk.

关键词： Infective endocarditis Native valve infective endocarditis Diabetes mellitus Valvular heart disease Cardiovascular disease National Inpatient Sample

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Intensive care unit hospitalizations and outcomes in patients with severe COVID-19 during summer and fall surges in Georgia

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World Journal of Critical Care Medicine 2021年第6期10卷 369-376页

作者： Titilope Olanipekun Temidayo Ayotomiwa Abe valery sammah effoe Joffi E Musonge-effoe Agusiegbe Chuks Esther Kwara Alexandra Caldwell Samed Obeng Nicolas Bakinde Gloria Westney Richard Snyder Department of Hospital Medicine Covenant Health SystemKnoxvilleTNCovenant Health SystemKnoxvilleTX 37922United States Department of Medicine Morehouse School of MedicineAtlantaGA 30310United States Department of Cardiology Morehouse School of MedicineAtlantaGA 30310United States Department of Clinical Research Morehouse School of MedicineAtlantaGA 30310United States Department of Medicine Pulmonary and Critical Care SectionMorehouse School of MedicineAtlantaGA 30310United States

BACKGROUND There is limited data on the difference in the clinical characteristics and outcomes of patients with severe coronavirus disease 2019(COVID-19)infection in the summer compared to the fall *** To compare the sociodemographic,clinical characteristics,and outcomes among mechanically ventilated patients with severe COVID-19 infection admitted to the intensive care unit(ICU)during the summer and fall surges in the year *** We included patients admitted to the ICU and treated with invasive mechanical ventilation for COVID-19 associated respiratory failure between April 1 and December 31,*** were categorized into summer surge for ICU admissions between June 15,2020,and August 15,2020,and fall surge between October 15,2020,and December 31,*** compared patients'characteristics and outcomes using descriptive and inferential *** A total of 220 patients were admitted to the Grady Memorial Hospital ICU and mechanically ventilated for COVID-19 associated hypoxemic respiratory failure during the period considered(125 during the summer surge and 95 during the fall surge).More women were admitted in the fall compared to summer(41.1%vs 36.8%,difference,4.3%;95%CI:1.2,7.5).Patients admitted in the fall had fewer comorbidities(chronic obstructive pulmonary disease,stroke,diabetes mellitus,obstructive sleep apnea and body mass index≥35 kg/m2).Overall,patients in the fall had a lower ICU mortality rate(27.4%vs 38.4%,difference,-11.0;95%CI:-6.4,-18.2),shorter length of stay on the mechanical ventilator(7 d vs 11 d,difference,4 d;95% CI:2.1,6.6)and shorter ICU length of stay(9 d vs 14 d,difference,5 d;95% CI:2.7,9.4).CONCLUSION Patients admitted with severe COVID-19 infection requiring mechanical ventilation had better outcomes in the fall than *** difference observed is likely attributable to a better understanding of the condition and advances in treatment strategies.

关键词： COVID-19 COVID-19 surge Georgia Intensive care unit Mechanical ventilation

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Terahertz high-sensitivity SIS mixer based on Nb–AlN–NbN hybrid superconducting tunnel junctions

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Chinese Physics B 2024年第5期33卷 681-686页

作者：刘博梁刘冬姚明金骏达王争李婧史生才 Artem Chekushkin Michael Fominsky Lyudmila Filippenko valery Koshelets Purple Mountain Observatory Chinese Academy of SciencesNanjing 210023China School of Astronomy and Space Sciences University of Science and Technology of ChinaHefei 230026China Kotel'nikov Institute of Radio Engineering and Electronics Russian Academy of SciencesMoscow 125009Russia

The terahertz band,a unique segment of the electromagnetic spectrum,is crucial for observing the cold,dark universe and plays a pivotal role in cutting-edge scientific research,including the study of cosmic environments that support life and imaging black ***-sensitivity superconductor–insulator–superconductor(SIS)mixers are essential detectors for terahertz astronomical telescopes and interferometric *** to the commonly used classical Nb/AlO_(x)/Nb superconducting tunnel junction,the Nb/AlN/NbN hybrid superconducting tunnel junction has a higher energy gap voltage and can achieve a higher critical current *** makes it particularly promising for the development of ultra-wideband,high-sensitivity coherent detectors or mixers in various scientific research *** this paper,we present a superconducting SIS mixer based on Nb/AlN/NbN parallel-connected twin junctions(PCTJ),which has a bandwidth extending up to490 GHz–720 *** best achieved double-sideband(DSB)noise temperature(sensitivity)is below three times the quantum noise level.

关键词： SIS mixer terahertz gap voltage critical current density hybrid superconducting tunnel junction

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A Review on Characteristics, Extraction Methods and Applications of Renewable Insect Protein

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Journal of Renewable Materials 2024年第5期12卷 923-950页

作者： Adelya Khayrova Sergey Lopatin valery Varlamov Research Centre of Biotechnology of the Russian Academy of Sciences Moscow119071Russia

Due to the expected rise in the world population,an increase in the requirements for quality and safety of food and feed is expected,which leads to the growing demand for new sources of sustainable and renewable *** protein is gaining importance as a renewable material for several reasons,reﬂecting its potential contribu-tions to sustainability,resource efﬁciency,and environmental *** insect species are known to be able to efﬁciently convert organic waste into high-value products such as protein,requiring less land and water compared to traditional *** addition,insect farming produces fewer greenhouse gas emissions,contri-buting to mitigating climate *** are considered as a major potential alternative to animal or plant protein due to their many nutritional beneﬁts,including high protein,mineral,and vitamin *** average,the protein content of insects ranges between 35%and 60%dry weight,which exceeds plant protein sources,such as cereal,soybeans,and *** the acceptance of insect protein grows and technologies advance,the food and feed industries continue to explore and expand their applications,offering consumers diverse and sustainable pro-tein *** this review,we discuss the recentﬁndings relating to insect protein focusing on its characteristics,extraction methods,applications,and opportunities along with some trade-offs and uncertainties.

关键词： Circular economy waste utilisation protein insect Hermetia illucens

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Spherically Symmetric Problem of General Relativity for a Fluid Sphere

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Journal of Modern Physics 2024年第4期15卷 401-415页

作者： valery V. Vasiliev Leonid V. Fedorov Institute of Applied Mechanics of Russian Academy of Sciences Moscow Russia

The paper is devoted to a spherically symmetric problem of General Relativity (GR) for a fluid sphere. The problem is solved within the framework of a special geometry of the Riemannian space induced by gravitation. According to this geometry, the four-dimensional Riemannian space is assumed to be Euclidean with respect to the space coordinates and Riemannian with respect to the time coordinate. Such interpretation of the Riemannian space allows us to obtain complete set of GR equations for the external empty space and the internal spaces for incompressible and compressible perfect fluids. The obtained analytical solution for an incompressible fluid is compared with the Schwarzchild solution. For a sphere consisting of compressible fluid or gas, a numerical solution is presented and discussed.

关键词： General Relativity Spherically Symmetric Problem Fluid Sphere

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Cluster Analysis of the Roma-BZCAT Blazars

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Research in Astronomy and Astrophysics 2024年第5期24卷 117-139页

作者： Dmitry O.Kudryavtsev Yulia V.Sotnikova Vladislav A.Stolyarov Timur V.Mufakharov valery V.Vlasyuk Margarita L.Khabibullina Alexander G.Mikhailov Yulia V.Cherepkova Special Astrophysical Observatory of the Russian Academy of Sciences Nizhny Arkhyz 369167Russia Astrophysics Group Cavendish LaboratoryUniversity of CambridgeCambridge CB3 OHEUK Kazan Federal University 18 Kremlyovskaya StKazan 420008Russia

Based on the collected multiwavelength data, namely in the radio(NVSS, FIRST, RATAN-600), IR(WISE),optical(Pan-STARRS), UV(GALEX), and X-ray(ROSAT, Swift-XRT) ranges, we have performed a cluster analysis for the blazars of the Roma-BZCAT catalog. Using two machine learning methods, namely a combination of PCA with k-means clustering and Kohonen's self-organizing maps(SOMs), we have constructed an independent classification of the blazars(five classes) and compared the classes with the known Roma-BZCAT classification(FSRQs, BL Lacs, galaxy-dominated BL Lacs, and blazars of an uncertain type) as well as with the high synchrotron peaked(HSP) blazars from the 3HSP catalog and blazars from the TeVCat catalog. The obtained groups demonstrate concordance with the BL Lac/FSRQ classification along with a continuous character of the change in the properties. The group of HSP blazars stands out against the overall distribution. We examine the characteristics of the five groups and demonstrate distinctions in their spectral energy distribution shapes. The effectiveness of the clustering technique for objective analysis of multiparametric arrays of experimental data is demonstrated.

关键词： methods data analysis-galaxies active-(galaxies:)BL Lacertae objects general

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Pareto Optimization as the Basic for Selecting Robotic Mechanic Assembly Technologies

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Applied Mathematics 2024年第6期15卷 421-439页

作者： Valerii Kyrylovych Dragoljub Tanovic Dmytro Melnychuk Liudmyla Mohelnytska Petro Melnychuk valery Yanovsky Faculty of Computer-Integrated Technologies Mechatronics and Robotics Zhytomyr Polytechnic State University Zhytomyr Ukraine Faculty of Mechanical Engineering University of Belgrade Belgrade Serbia

The task of selecting robotic mechanic assembly technologies (RMAT) is considered as a multi-criteria optimization task, which in this formulation is solved on the set of previously obtained solutions regarding the selection of RMAT. The purpose of the paper is to increase the efficiency of technological preparation of robotic mechanical assembly production of machine and instrument engineering due to a new approach to the selection of RMAT using Pareto optimization and the peculiarities of the selection task formulation. The novelty consists in the further development of a science-based approach to solving multi-criteria selection task, based on the first proposed formalisms of the specified process, which reflect the peculiarities of the selection task formulation, its meaningful essence and the content of the Pareto optimization method. The practical value of the research lies in the proposed engineering-acceptable approach to solving applied multi-criteria selection tasks on the example of RMAT selection, which is invariant to the statement of the selection task, the dimension of the task, and its meaningful essence. The methods of discrete optimization, fuzzy multi-criteria selection of alternatives, and the Pareto optimization method were used for the research. The main results of this work consist of the development of formalisms and the demonstration of the efficiency of the proposed approach for the applied task of RMAT selection. The peculiarity of the developed approach is the combination of Pareto optimization, performed on a discrete set of local criteria. Directions for further research are presented.

关键词： Multicriteria Optimization Efficiency Fuzzy Multicriteria Selection of Alternatives

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Floristic Diversity and Conservation Status of Guineo-Congolese Species in Southeastern Cameroon: The Case of the Gari-Gombo Communal Forest

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Open Journal of Forestry 2024年第1期14卷 87-97页

作者： Boris Nyeck valery Noiha Noumi Nicole Maffo Maffo Victor Awe Djongmo Cedric Djomo Chimi Louis Zapfack Department of Biological Sciences Faculty of Sciences University of Ngaoundéré Ngaoundéré Cameroon Agricultural Research Institute for Development (IRAD) Minko Agricultural Research Station Meyomessala Cameroon Department of live Sciences Higher Teacher Training College University of Bertoua Bertoua Cameroon Department of Plant Biology and Physiology Faculty of Sciences University of Yaoundé I Yaoundé Cameroon Agricultural Research Institute for Development (IRAD) Research Station of Yokadouma Yokadouma Cameroon

The conservation of plant biodiversity has become one of the most important objectives in the sustainable management of Guinean-Congolese ecosystems. However, in the south-east zone of Cameroon, there is a lack of rigor in the management of these forests, which can result in the loss of species of high conservation value. The study was carried out in communal forests in the south-east zone of Cameroon. Its aim was to carry out a floristic inventory and then compare the list of species with the IUCN catalog. Twenty-four plots, each with a surface area of 0.2 ha, were set up in the Gari-Gombo communal forest. All timbers with a DBH ≥ 5 cm were systematically counted. A total of 176 species, belonging to 144 genera and 45 families, were surveyed. Fabaceae (42.08%), Malvaceae (39%), Euphorbiaceae (24.64%), Moraceae (20.92%), Apocynaceae (18.64%), Cecropiaceae (16.60%), Ulmaceae (14.76%), Meliaceae (14.61%), Violaceae (14.08%), Combretaceae (12.67%), Theobroma cacao (21.17%), Baphia leptobotrys (18.06%), Rinorea sp. (14.09%), Musanga cecropioides (12.18%), Terminalia superba (10.32%), Neosloetiopsis kamerunensis (10.14%), Celtis zenkeri (8.29%) and Alstonia boonei (7.77%) were the most important taxa. Nearly 90% of the species in this forest are Guinean species, with a dominance of Guinean-Congolese species (66%). Fourteen (14) threatened species have been identified in the FCGG. This study, which highlights the rich biodiversity of communal forests, is important for guiding biodiversity conservation policies in ecosystems used for production.

关键词： Communal Forest Conservation Status Cameroon Floristic Diversity

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Physico-Mechanical Characteristics of Earth Bricks Stabilized with Cement and Padouk Sawdust Residues

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Open Journal of Applied Sciences 2024年第7期14卷 1788-1806页

作者： Gabin Alex Nouemssi Bennis Amine Martin Ndibi Mbozo’O Bonaventure Djeumako Doko K. valery Guy Edgar Ntamack LA2MP: Laboratory of Mechanics Materials and Photonics National School of Agro-Industrial Sciences ENSAI Ngaoundr Cameroun Department of Mechanical and Production Engineering National School of Agro-Industrial Sciences ENSAI Ngaoundr Cameroun LMTM: Laboratory of Mechanics Materials and Thermal National School of Mineral Industry ENIM Rabat Morocco LEMA: Laboratory of Energertic and Applied Mechanics University of Abomey-Calavi Cotonou Benin GMMA: Group of Mechanics Materials and Acoustics Department of Physics Faculty of Sciences-EGCIM Ngaoundr Cameroun

The objective of this work is to improve the physical and mechanical properties of stabilized earth blocks (BTC) used in construction in the Ndé department of Cameroon. To achieve this, two stabilizers, cement and sawdust, were used at varying percentages of 0%, 4%, 6%, and 8%. Physical characterization tests, including natural water content, specific weight, jar test, Protor, and Atterberg limits, were conducted. Additionally, mechanical tests, such as compression and three-point bending, were performed. The results show that as the amount of stabilizer increases, the density of BTC decreases. The samples with 8% sawdust have the highest density, while those without stabilizers have the lowest. Porosity decreases as sawdust and cement content increases, with smaller values observed in samples with 8% sawdust or cement. Our tests indicate that blocks stabilized with cement have slightly higher compressive strength than those stabilized with sawdust. However, the water absorption rate increases with higher sawdust content.

关键词： Earth block Cement Sawdust Physico-mechanical Characteristics Bangante West Cameroon

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Physico-Chemical and Nutritional Properties of a Food Broth Based on Nere (Parkia biglobosa)

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Food and Nutrition Sciences 2024年第5期15卷 377-389页

作者： Lassana Bamba Gervais Melaine M’Boh N’Gbésso Amos Ekissi Kipré Laurent Séri Gnogbo Alexis Bahi Koffi Pierre valery Niaba Allico Joseph Djaman Grah Avit Maxwell Beugre Laboratory of Agro-Valorization Department of Agroforesterie Jean Lorougnon Gu&#233d&#233 University Daloa C&#244te d&#8217Ivoire Medical and Fundamental Biochemistry Department Institut Pasteur of C&#244te d&#8217Ivoire Abidjan C&#244te d&#8217Ivoire Laboratory of Biotechnology Agriculture and Valorization of Biological Resources Department of Biosciences Felix Houphouet-Boigny University Abidjan Cote d&#8217Ivoire Biology and Health Laboratory Department of Biosciences Felix Houphouet-Boigny University Abidjan C&#244te d&#8217Ivoire

Purpose: Diet and eating habits are major risk factors for the health and the development of disease, such as, for example, metabolic disorder leading to cardiovascular pathology and cancer, decreased immunity exposing to infections. This study of the physico-chemical and nutritional properties of a soumara-based food broth was carried out with the aim of promoting the consumption of organic broth made from nere seeds (soumara). That is to alleviate certain metabolic diseases, which is a matter of food safety, and also to limit the risk for the health about the consumption of some cooking stocks on the market. Methods: Several natural ingredients such as nere seeds (soumara), ginger, black pepper, parsley and garlic were used to create a nere-based stock. All these ingredients were freeze-dried and the powder obtained was used to make the broth, regarding their physical and chemical properties. Results: The broth had a good protein content of 17.41 ± 0.367 g/100g, a lipid content of 16.80 ± 0.08 g/100g and a fiber content of 8.66 ± 0.04 g/100g. In terms of nutritional values, the broth showed good levels of calcium 184.21 ± 0.09 mg/100g, potassium 50.04 ± 1.45 mg/100g and iron and zinc. In terms of antioxidant activity, the broth also showed good antioxidant activity. Conclusion: Regarding the properties of our food broth, whose composition is based on natural ingredients, could be recommended for consumption and, its properties, could play an important role in preventing and combating certain metabolic diseases.

关键词： Food Broth Nere Physico-Chemical Properties Nutrition Food Safety

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